The study compares two combinations of chemotherapy in patients with advanced or metastatic NSCLC: 50% of the patients are treated with cisplatin and docetaxel, the other 50% with oxaliplatin and docetaxel. cisplatin is today the standard therapy, but the toxicity profile is often not tolerable. Especially in elderly patients or patients with comorbidities, oxaliplatin based chemotherapy may have lower toxicities but comparable or even better response rates.